Bob Hope hopes to become a contestant on "The $65,000 Question" to make money. He accidentally strikes Carolyn Spooner with his yo-yo. She takes him to the lab of her father, who puts him into a time machine and sends him into the future. He encounters his rich, grateful landlady, Mrs. Peabody.

[continued] Bob Hope is avoids the cave man's club by ducking for his yo-yo. The cave girl knocks out the cave man and saves Bob from a pterodactyl. Bob insults her by suggesting that they "boop-boop-a-doop". She punches him and he lands back in Professor Spooner's lab. He fails to get on "The $65,000 Question", so Mrs. Peabody chases him with a club to get her rent.